S K Gupta and Anubhuti Gangal Solutions for Chapter: Volume and Surface Area of Solids, Exercise 5: Exercise 22(E)

Copy and complete the table $\left(\mathrm{\pi }=\frac{22}{7}\right)$.

Copy and complete the table $\left(\mathrm{\pi }=\frac{22}{7}\right)$.

Copy and complete the table $\left(\mathrm{\pi }=\frac{22}{7}\right)$.

The volume of a cylinder is $660 {\mathrm{cm}}^3$. Find its height (in decimal form) if its radius is $5 \mathrm{cm}$.

If base radius of a right circular cylinder is halved, keeping the height same, find the ratio of the volume of the reduced cylinder to that of original cylinder.

A hollow cylindrical tube open at both ends is made of iron $3 \mathrm{cm}$ thick. If the external diameter be $56 \mathrm{cm}$ and the length of tube is $182 \mathrm{cm}$, find the number of cubic cm of iron in it.

A well  of $14 \mathrm{m}$ inside diameter is dug $15 \mathrm{m}$ deep. Earth taken out is spread all around to a width of $7 \mathrm{m}$ to form an embankment. Find the height of the embankment.

The rain falls $10 \mathrm{cm}$ on a particular day. The rain water that falls on a roof $70 \mathrm{m}$ long and $44 \mathrm{m}$ wide was collected in a cylindrical tank of radius $14 \mathrm{m}$. Find the rise in meters of water level in the tank due to rain water.